On Some Conjectures of Griggs and Graffiti

نویسندگان

  • Ermelinda DeLaViña
  • Siemion Fajtlowicz
  • William Waller
چکیده

We discuss a conjecture of J. R. Griggs relating the maximum number of leaves in a spanning tree of a simple, connected graph to the order and independence number of the graph. We prove a generalization of this conjecture made by the computer program Graffiti, and discuss other similar conjectures, including several generalizations of the theorem that the independence number of a simple, connected graph is not less than its radius.

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تاریخ انتشار 2001